Performance by cohort
2 year bands · 2,369 tests
Pass rate is broadly flat across the cohorts — new and old A4 S Line 35 Tdi Mhev S A examples track each other at the test bay.
Pass
89.0%
Fail
10.0%
PRS
1.0%
Avg mileage at test
39,169 mi
Pass
89.5%
Fail
8.6%
PRS
1.5%
Avg mileage at test
39,484 mi
Cohort = vehicle's first-registration year band. Same model, different generations of build.